[libcxx-commits] [libcxx] [libc++] Don't #define __unused with glibc in system_reserved_names.gen.py (PR #206971)

[Nikolas Klauser via libcxx-commits]

https://github.com/philnik777 created https://github.com/llvm/llvm-project/pull/206971

Newer glibc versions use the identifier `__unused`. To run the test successufly again disable the `__unused` check with glibc.


>From 0e7a566f7a27663a25f83154e8fd8f3d11763186 Mon Sep 17 00:00:00 2001
From: Nikolas Klauser <nikolasklauser at berlin.de>
Date: Wed, 1 Jul 2026 14:48:13 +0200
Subject: [PATCH] [libc++] Don't #define __unused with glibc in
 system_reserved_names.gen.py

---
 libcxx/test/libcxx/system_reserved_names.gen.py | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/libcxx/test/libcxx/system_reserved_names.gen.py b/libcxx/test/libcxx/system_reserved_names.gen.py
index aaaa385409be4..a0364eeed3256 100644
--- a/libcxx/test/libcxx/system_reserved_names.gen.py
+++ b/libcxx/test/libcxx/system_reserved_names.gen.py
@@ -122,7 +122,7 @@
 #define __release SYSTEM_RESERVED_NAME
 
 // Android and FreeBSD use this for __attribute__((__unused__))
-#if !defined(__FreeBSD__)  && !defined(__ANDROID__)
+#if !defined(__FreeBSD__)  && !defined(__ANDROID__) && !defined(__GLIBC__)
 #define __unused SYSTEM_RESERVED_NAME
 #endif